Ice-making machine.



G. H. REYNOLDS.

ICE MAKING MACHINE. nrmonmn rmm OUT. 31. 1906.

Patented Dec. 6,1910.

15 SHEETS-BHQBT 1.

G. H. REYNOLDS. 10E MAKING IAOHINE.

977,5. APIPLIOA'HOI run 0013.61, woe. Patented 6' 1910' 16 SHEETS-SHEET 2.

fi-ziwangv G. H. REYNOLDS.

ICE MAKING MACHINE.

APPLICATION FILED 00131, 1906.

Patelltfid D80. 6, 1910.

15 exams-sum 3.

G. H. REYNOLDS.

IGE MAKING MACHINE.

APPLICATION FILED 001'. a1, 1906.

Patented Dec. 6, 1910.

15 SHEETS-SHEET 4.

G. H. REYNOLDS.

IOE MAKING MACHINE.

APPLICATION PILEI) 00Tf31. 1906.

Patented Dec.6,1910.

16 SHEETS-SHEET 5.

JQWI smili ilil ilfi @MY HIM/Q mes G. H. REYNOLDS. IGE MAKING MACHINE.

APPLICATION FILED OUT. 31, 1906. 6,

16 SHEETS-SHEET 6.

G. H. REYNOLDS.

ICE MAKING MACHINE. APPLIUATIOK FILED 001'. 31, 1906.

G. H. REYNOLDS.

ICE MAKING MACHINE.

APPLICATION FILED OCT. 31, 1906.

Patented Dec.6,1910.

15 SHEETS-SHEET 8.

G. H. REYNOLDS.

ICE MAKING MACHINE. I APPLICATION rum) 001-31, 1906. 977,475.

16 SHEETS-SHEET 9.

19N140 Ase-q "e. H. REYNOLDS.

ICE MAKING MACHINE.

APPLIUATIOI FILED 00'1. 31, 1908.

Patented Dec. 6, 1910.

16 SHEETS-BEBE! l0.

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INVENTOR 16 SHEETS-SHEET 11.

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ICE MAKING MACHINE.

APPLICATION FILED 001 .31, 1906.

16 SHEETS-SHEET 12.

awn woma- Patented Dec. 6, 1910.

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Patented Dec. 6, 1910.

G. H. REYNOLDS.

ICE MAKING MACHINE.

APPLICATION FILED 00131, 1906.

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' G. H. REYNOLDS. v ICE MAKING MACHINE.

APPLICATION FILED DOT. 31, 1906.

Patented Dec. 6, 1910.

15 fllIBETB-BHEET 16.

UNITED STA S PATENT OFFICE.

GEORGE H. REYNOLDS, or MANSFIELD DEPOT, CONNECTICUT, AssrGNOR To THE REYNoLns ICE MACHINE COMPANY, OF NEW YORK, 1v. Y.,A CORPORATION OE NEW YORK.

ICE-MAKING MACHINE.

Speciflcatlon of Letters Patent. Patented Dec. 6, 1910.

Application filed October 31, 1906. Serial No. 341,391.

heat due to the work of compression, then expanded, and then recompressed to be used over again b and in the apparatus.

Particular y, the invention-relates to certain details of construction to be presently described which tend to improve andperfect the machines of the general character referred to.

Among the objects of my invention may be noted the following: to provide a complete, simple and compact apparatus for use in places where both the floor 'space and head space are small and where itis a desideratum to economize space on account of local requirements, such for example as on shipboard, in apartment houses, small refrigerating plants, etc.; to provide an apparatus of the character stated in which the driving mechanism is'combined with the refrigerating machine so as to transmit the driving ower .to the power-shaft of the apparatus irectly'a'fid economically and practically without loss in'transmisslon; to provide an electrically driven refrigerating apparatus in which the driving-motor is dlsposed on the to of the machine so as tobe Out of the way of dirt, Oil, water or other matter usually liable to in ure or destroy its eiiiciency, thus enabling said'motor to be installed without the usual objectionable shields, guard-covering, or casings; to provide an apparatus ofthe character stated in which the main supporting-frame carries within its outline all the essential mechanisms, thus producing a compact and well balanced structure without waste of floor space or head room and'devoid of vibration;

to provide certain details of construction re-' I mechanism whereby the same are simplified,

strengthened and made more effective in operation; to provide a new combination of the essentials of a refrigerating apparatus which increases'efiiciency and capacity; and to provide certain other improvements in details of construction which will be hereinafter more particularly described and claimed.

With the above objects in view, and others which will be disclosed. during the course of the description, the invention consists in the parts, features, apparatus and combinations of elements and mechanisms hereinafter described and claimed.

In order to clearly disclose the several 7 features of the invention, the accompanying drawings are made a part of the specification, and therein: A

Figure 1 represents, diagrammatically, all the essentials of the a paratus constituting my ice-making or re rigerating ,machine; Fig. 2 shows a side elevation of so much of the apparatus as is deemed necessary to illustrate the disposition and general arrangement of the parts constituting my inventlon; Fig. 3 is a top-plan View of the apparatus shown in Fig. l ;';F-ig. 4 is atop- P r removed; Fig. 5 is a side' elevation of the apparatus opposite to thatshown in Fig. i Fig. 6 is a longitudinal,.vertical section ofthe compression cylinder and the primer pump, showing the pistons and a portion of. the driving means for the latter, the'loca-' tion, only, of the valves in the ends of thecompression cylinder being shown in dotted line, in Order to avoid confusion of parts; Fig. 7 is an end elevation of the compression cylinder, a portion of the primer-pump cylinder beingshown in section; Fig. 8 1sa vertical cross-section of the compression cylinder substantially on the line 8-8 of Fig. 6, the arrow showing the directions of sight and the piston beingremoved; Fig, 9 is a longitudinal section of the compression cylinder substantially on the line 9-9 of Fig. 7, the figure also showing the end chambers of the compression cylinder in section, in order to illustrate the valve construction and disposition; Fig. '10 is a vertical longitudinal section of the central portion of the apparatus showing the position of the driving-shaft and crank and the connection oft-he latter with the piston driving frame: Fig. 1.1 is an enlarged sectional de-' tail of one of the outlet-valves of the compression chamber; Fig. 12 is a similar view an view of the apparatus-,-;-with the motor of one of the inlet-valves of the compression chamber; Fig. 13 is an enlarged view showing, partially in elevation and partially in section, the piston-head and its rod used in both the compression cylinder and in the expansion cylinder; Fig. 14 is a vertical, longitudinal section of the cooling cylinder; Fig. 15 is an elevation of the inlet end of the cooling cylinder the head being removed; Fig. 16 is a sectional detail illustrating the manner in which the coils of the cooling cylinder are combined or coupled; Fig-.17 is a longitudinal, vertical section of the expansion cylinder and its cooperating valve-structure; Fig. 18 is a transverse vertical section of the expansion cylinder and valve construction taken substantially on the line 18--18 of Fig. 17, the piston being removed; Fig. 19 is a transverse vertical section of the expansion cylinder and valve construction taken substantially 011 the line 19-19 of Fig. 17; Fig. 20 is a top-plan view of the frame and a portion of the valve mechanism of Fig. 17; Fig. 21 is a longitudinal, vertical section of a portion of the valve mechanism shown in Fig. 17, the section being taken along the line calculated to disclose the details of the connection be tween the rock-shaft and the reciprocating frame of the valve; Fig. 22 is a section substantially on the line 2222 of Fig. 20; Fig. 23 is a section substantially on the line 2323 of Fig. 20; and Fig. 24 is a top-plan view of the valve construction of Fig. 17, substantially on the line 2424 of Fig. 17.

The principles of operation of apparatus of the character made the subject of my invention being well understood by those skilled in the art, the accompanying drawings have not been burdened with details illustrating the many and various parts constituting a complete apparatus for refrigerating purposes; but, the illustrations have been confined to 'just so much of the refrigerating apparatus as has been deemed important or necessary to illustrate the manner in which I contemplate carrying my invention, in all its details, into effect. It may be well, however, to state generally, with reference to the diagram of Fig. 1, that water is employed as a cooling medium for the gas and is conveyed to the apparatus by connection with any suitable watermain, plug or spigot, through the water-inlet pipe 1, the pump 2 being employed for causing the proper circulation of the water through the apparatus, the water, after leaving the pump, being driven through the pipe-connectlon 3 to the compressor 4 and from the latter through the pipe 5 to the cooling-tank 6 and from the latter through the pipe 7 to the sewer or any suitable drain. As will be presently disclosed, the compression cylinder or tank has combined therewith a primerpump mechanism which, in the diagram of Fig. 1, is illustrated only by the small pipeconnection 8 tapped into the return-pipe of the air-circulating system atthe point indicated by 9, the other end of said primerpump being tapped into the compression cylinder at 10, in order to illustrate that the compression cylinder may be primarily supplied with air and thereafter constantly supplied with air, in order to keep up the volume of gas or other circulatmg medium.

The air or gas on leaving the compression tank passes through the pipe or 'conduit 11 into the cooling tank 6 and through the coils of pipe therein, passing therefrom through the conduit 12 to the expansion cylinder 13, thence passing through the conduit 14 to the cold room or other place or point of refrigeration indicated in the diagram at 15. After accomplishing its work in the cold room; the air or gas passes through the return conduit 16 to the compression cylinder. where it is again compressed and compelled to reperform its work. With this general statement of the character of the apparatus, and its principle or mode of operation, the several details of my invention will be readily understood from the following deta'il description.

GenemZ arrangement.-Viewin Figs. 2, 3, 4 and 5, the juxtaposition of t e several parts, the relation of the same as contemplated by my invention and the manner in which the several mechanisms are combined in order to form a simple and compact refrigerating apparatus will be seen and understood; and, particularly, referring to these figures, the main frame is indicated by 17 and centrally supports the framing 18, upon which is mounted .a motor 19. The main frame 17 also supports the pillowblocks or journal-bearings 20, in which the driving-shaft 21 is supported and operates, which shaft carries at one end the drivingwheel 22 which may, if desired, be a sprocket-wheel driven by a sprocket-chain 23. At one end the main frame 17 supports, or is formed into, a frame-structure 24 carrying the compression mechanism or cylinder 4, and upon said frame-structure 24.- a superstructure 25 is mounted, which carries a cooling cylinder 6. At the opposite end of the main frame 17, the latter-su ports a frame-structure 26 which carries t 2 expansion chamber 13 and its allied valve tion-so as to form a-compact and economical arrangement from which all vibration is practically eliminated. This arrangement of parts also laces the compression and expansion cylin ers substantially in the longitudinal axis of the apparatus and enables them to take the direct thrust of the drivingshaft in and along their longitudinal a'xes without vibration or strain upon the apparatus or any of its mechanisms. Furthermore, by the arrangement just described, of the several mechanisms of the apparatus, the long runs of pipe forming the conduits for water and gas extend substantially longitudinally of the apparatus, thus preventing what little vibration of the apparatus there may be from being transmitted to the said conduits, and hence avoiding strain upon essential parts and joints of the apparatus. This arrangement of the mechanisms and parts of the apparatus is an important feature of my invention, and upon its advantages and functions, I desire to lay stress.

Generally speaking, the air or other gas, which is employed as the circulating and refrigerating medium, is pumped or forced into the receiving or return chamber or pipe of the compression mechanism by means of the primer-pump located in the bottom of the com ression tank, as shown in Figs. 6 and 8, tlie pump section of the tank being indicated by 27, and the pump cylinder 28 extending longitudinally of said section and secured to the latter by a" suitable coupling at one end generally indicated by 29 and forming apart of the stuffing-box for the piston 30, which latter is hollow and operates within the cylinder and carries at its front end the-head containing an outletvalve 31, as usual. The other end of the cylinder is secured to the frame-section 27 by means of the outletvalve coupling-portion 32 of usual construction, a conduit 33 from which extends to the adjacent head 34 of the compression chamber.

The primer-pump construction'forms no part of my invention and, in-consequence, is not described nor shown in all its details; but, the piston 30 of said pump is connected to the cross-head or reciprocating driving frame 35, presently described more in detail,

by means of the pivot-bolt 36. By using the primerpump, the apparatus may be provided primarily, and at all times during its operation, with sufficient air or other gas to insure its successful, constant and automatic operation.

Compression meoham'sm.The structure of the compression mechanism constitutes one of the important features of my invention and the details thereof will now be described with reference to Figs. 6, 7, 8, 9, 11, 12 and 13. The cylinder of the'compressor is indicated by 37 and is preferably made of brass, and is provided at each end with a flange 38, which surrounds the cylinder and affords a bearing for the same within the main frame 4, the latter having corresponding flanges or bearings 39 surrounding the cylinder 37, the frame and cylinder thus forming a water-jacket 40. The periph ei y of the cylinder 37 is provided with, circumferential corrugations or flanges 41, which give to the exterior of said cylinder a greater cooling surface or area. The hollow heads 34 and 42 at the opposite ends of the frame 4 close the latter and-the cylinder at both ends, and the head 42 affords a hearing at 43 for the piston 44 carrying the head 45, which operates within the cylinder 37, the opposite head 34 of theframe being provided with a'recess 46 for the rece tlon of the outer end of the piston 44, w ich extends beyond its head 45.

A. suitable bushing and stuffing-box construction, generally indicated at 47, surrounds the piston rod at the cylinder head 42 for the usual purposes, and the saidpiston rod 44 is pivotally connectedat 48 with the reciprocating frame 35, and substantially midway of the latter. The cylinder 37 is also provided with a longitudinally extending flange 49, see Fig. 8, ocated so as to cooperate with an oppositely-disposed flange 50 projecting from the inside'of the frame-portion 27, above, the primer-pump cylinder, and into the space 40 constituting the waterjacket surrounding the cylinder 37. These twofianges 49 and 50 are so proportioned that they do not engage each other, but stand slightly separated so as to permit the passage of Water, and yet constitute a baflie preventin the free flow of water past'them and compelling the great volume of water to take passage around the cylinder 37 in the direction of the arrow at, thus providing a means whereby practically the full flow or volume of water will pass around the cylinder and come in contact with substantially every portion of the surface thereof. By this construction, althou h water is baffled in its free passage aroun the bottom of the cylinder 37 and is compelled to take the course around and over the top of said cylinder, it may, however, pass to some extent between the -two flan s and it will, moreover, accumulate in t e chamber afforded by the frame-portion 27 around the, primer-pump cylinder 28 and will, in this chamber, form an eddy and receive 'an agitation sufficient to prevent the water more in detail. The air or gas, returnin from the cold room through the;cond i't,

see Fig. 1, enters the compression cylinder throu h the inlet 53, which communicates with t e passage 54'extending across the top of the frame 4, which in turn communicates with the chamber 55 of the head 34 and a corresponding chamber in the opposite head 42; or, if the air is supplied by means of the primer-pump shown in Fig. 6, it will be conveyed dlrectly to the chamber 55 of the head 34 by means of the conduit 8, as shownin Fig. 1.

Inlet 'val'vese-From the chambers 55, the air passes to the cylinder 37, in front of and behind the piston-head 45, through the inlet-valves generally indicated by 56, in Fig. 9, but shown in detail in Fig. '12, said inlet-valve consisting of the beveled-disk valve-head 57 carried by the stem 58 journaled near the valve-head in the spider 59, which latter is peripherally screw-threaded to coiiperate with the inner wall 34 of the head 34 and is provided at its front end with a beveled flange 6O coiiperating with the valve-head 57. At its opposite end the stem 58 is journaled in the cap 61, the inner end of which is hollow and is peripherally screw-threaded to cotiperate with the outer wall of the head 34. The said stem 58 operates and is journaled within the recess 62 of the cap 61 and a collar 63 fixed to said stem 58 operates within the hollow of said cap. Surrounding the stem 58 is a coiledspring 64, one end of which engages the collar 63 and at its other end engages the fixed spider 59, and thus operates to normally and constantly force the valve-head 57 against its seat 60. One of the important features of my invention in this valve mechanism resides in making that portion of the valve-stem, which is journaled in the spider 59, much larger than the rest of the stem and elongating such enlarged portionso as to give to the stem a long, strong, and steady bearing. This is important in that, if the valve-stem should break at or near the head 57, the latter would instantly be projected into the compression chamber with the result of probably breaking or injuring expensive and important parts of the mechanism and of putting the apparatus out of commission; but, by making the bearing for the valve-stem larger, stronger than the remainder'of the stem, the possibility of breaking is avoided, the bear- 'lllg and movement of the stem are made steadier and the certainty of act-ion is ma- ;terially increased. In order that the air pressure may not force the valve-head 57 6 too far away from its seat by excessive compression of the spring 64, an additional spring 65 is placed inside the spring 64 and around the stem 58, so as to exert its expansive power upon the stem to prevent excessive movement of valve-head 57, these two'springs also having the function of op? longer and crating as a cushion to prevent the rattling of the valve-parts during the rapid opera tion of the apparatus and vibration of the valve. Now viewing Fig. 9, it will be seen that the ends of the cylinder 37 project a short distance over the face of the valvehead 57, as shown at 66, thus interposing a stationary part of the frame in the way of the valve-head and so as to operate as a stop and prevent any possibility of said valvehead dropping into the compression cylinder under excessive pressure of the air should the same overcome the strength of the two springs surrounding the valve-stem. Furthermore, it will now be seen that the supplemental spring 65 will also operate as a cushion to prevent the valve-head from being driven with undue force, or with any force, against'the projecting portion 66 of the cylinder ends. Hence, thougl; the valve may have absolute freedom of movement for its functional purposes, that movement is limited and thelimitation is such as to prevent it from leaving its seat to such an extent as to deprive 1t, under any circuma ence to Figs. 7 and 9, is provided with the central division-web 67, continued across the heads 34 and 42 by the structure thereof, which separates the inlet and outlet passages 54 and 54 and produces the corresponding, opposite end-chambers 55 and 55. The inlet-valves 56 operate to admit the air to the compression cylinder 37, while outlet-valves, generally indicated by 56 in Fig. 9, allow the air to pass from said cylinder into the chamber 55 and from thence to the passage 54 extending across the top of frame 4. to the outlet 70, see Fig. 8, to the conduit 11, see Fig. 1, and to the cooling tank 6.

0utZet-vaZ'ves.The outlet-valves 56 are shown in detail in Fig. 11 and, therein, the valve-head 71 is carried by the stem 7 2 journaled in sleeve 73, in turn journaled at its forward end in'the spider 74, which latter is peripherally screw-threaded to coiiperate with the ring 75, which in turn is peripherally screw-threaded to co5perate with the wall 34 of the head 34. The ring 75, at its outer end, is provided with a beveled flange 76 providing a seat for the valve head 71. The other end of the sleeve 73 is journaled in the ca 77, which is peripherally screw-threaded at its inner end to cooperate with the head 34 and is provided centrally with the bore 78, which latter is enlarged at its open end to provide the chamber 79. The sleeve 73 slides freely in the bore 78 of the cap 7 7 and near its outer end is provided with the collar or flange 80 affording a bearing for the coiled-spring 81,

I which surrounds said sleeve, and the other end of which spring operates within the chamber 79, the spring thus exercising a normal tendency to force the sleeve ontwardly! and the sleeve, in consequence, exercising a normal tendency to force the valvestem outwardly and the valve-head 71 against its seat 76. In the bore 78 of the cap 77, a coiled-spring 82 is located, which cooperates with the adjacent end of the sleeve 73 and prevents the latter from being' forced too far into the bore 78, thus preventing the valve-head 71 from having excessive movement away from its seat 7 6. In other words, the power of the compressed air will force the valve-head 71 away from its seat- 76, thus exerting pressure on the sleeve 72%, which in turn will compress the spring 81, the latter having a normal tendency to hold the valve-head 71 against its seat 76; but, should the air pressure be sufficient to excessively compress the spring 81, the spring 82 in the cap 77 will act as a cushion to receivmthe impact of the end of the sleeve 73, andwill prevent too great movement of the valveshead, cushion the movement of the same and prevent the valve parts from rattling or operating upon each other noisily. Viewing Figs. 7, 8 and 9, it will be seen that. the inlet and outlet valves are arranged in pairs in the opposite chambers 55 and 55, that is, in each of the end-chambers 55, two inlet-valves are provided, one above the other, the pairs of valves admitting gas to the cylinder 37,-alternately in the operation of the apparatus-in front of and behind the piston-head 45, while in each of the chambers 56 two outlet-valves are provided permitting the gas to pass from the cylinder 37 from in front of and behind the pistonhead 15, the operation and disposition of the valves being the same as described with reference to the inlet-valves.

Iz'sfou-bmdr-flhe air in the cylinder 37 will be compressed by the piston-head generally indicated at 45, as shown in Fig. 6; and the details of construction of this pistonhead may be determined upon reference to Fig. 13, wherein the outer end of the pistonrod 4:4: is prtwidcd with an inclined or,eonverging portion 83, terminating in the re.- duced spindle 84, screw-threaded at its outer end for the reception of the jam and holding nuts 85, which clamp the parts of the piston-head together and the latter firmly upon the end of the piston-rod against the shoulder 86 formed at the juncture of the in clined portion 83 with the body of the piston-rod. The piston-head consists of the two circular parts 87 and 88, the 1part 87 being rovided with the slightly en arged hubportion 89. The part 87 is providedin its periphery with the groove 90 beginning substantially midway transversely of said periphery and ending at the inside face of the part 87. The part 88of the piston-head is provided with a similar peripheral groove 91 terminating laterally of the periphery of.

said part at the flat face 92, which latter extends to a reduced and elongated portion 93 extending to the inner face of the part 87, to which latter said reduced portion is secured by a plurality of screws 94. The part 88 is also provided with the elongated hub-portion 95 centrally bored for the reception of the spindle-end 84 of the piston-rod and pro-' vided with an inclined portion for cooperation with the inclined part 83 of the pistonrod. The two parts 87 and 88, when secured together as described, form between them a peripheral groove in the piston-head for the reception of a piston-ring, which latter consists of a two-part, substantially U-shaped clamp or holder, one part of which is provided with the vertical wall 96 terminating at its outer end in the flan e, 97, the outer surface of which is grooved so as to corre--- spend in a measure with the wall 92 and groove 91 in the part 88. The body-part 98 ot' the U-shaped piston-ring extends at a right-angle to the wall 96 and occupies nearly all of the peri heral groove formed in the piston-head. T 1e opposite Wall 99 of the piston-ring extends parallel with the wall 96 and is provided with a flange 100, the outer face of which is grooved so as to conform substantially to the groove 90 and inner face of the part 87 of the piston-head.

The body-part 98, of the piston-ring, is pro vided with one or more screw-threaded bores 101, into which an instrument may be inserted for removing the part, which securely holds, in the groove of its periphery, a ring filling in two parts indicated by 102 and 103 said filling having a backing-ring 104 of leather, and under said backing-ringtan expansion-band indicated by 105. The rnig filling 102 and 103 may be made of rubber, but ispreferably made of bronze, the same being a material less liable to corrode or rust under any and all conditions, irrespective of the purpose for which the piston-head 1s used. On each side of the piston-ring, and between the same and the two parts ofthe head, a. leather packing 107 is inserted, the same consisting of a ring or strip sufficiently wide to enter the groove formed by the two parts of the iston-head inthe periphery of the latter an between the same and the pisston-ring, the said strips of leather packing being turned over into the groove 90 on the one side and the groove 92 on the other s1de of the piston-head. This packing 107 is of leather, in case the piston-head is used for cylinders for water or gas compression, or

will be of metal, if the'pistonis used for be used in various connections for fiuid com- 

